The document metadata.
(title ,
authorlist ,
keyword *
,
manualtype ?
,
softwareversion ?
,
docnumber ,
history ,
docdate ,
coverimage ?
,
copyright ?
,
mapidlist ?
)
docinfo |_(title, |__authorlist, |__keyword*, |__manualtype?, |__softwareversion?, |__docnumber, |__history, |__docdate, |__coverimage?, |__copyright?, |__mapidlist?)